Investigators were preparing to do a “FOD walk” – foreign object debris – on the runway to document and collect all relevant evidence, Inman said.
He also said investigators were not aware of any staffing shortages at the airport due to the federal government shutdown.
The debris field outside Louisville International Airport after a UPS plane crashed on take-off.Credit: WLKY-TV
The new information shared by the NTSB has echoes of the worst aircraft disaster in US history, when in 1979 American Airlines flight 191 crashed on take-off from Chicago, killing all 271 passengers and crew on board.
That aircraft was a McDonnell Douglas DC-10, a predecessor of the MD-11, and also involved the left engine separating from the wing during take-off, leading to a loss of control. Investigators found the engine detached due to improper maintenance, leading to failure of the pylon structure.
Aviation journal Leeham News, however, cautioned against drawing early conclusions, pointing to unconfirmed reports that the MD-11’s departure was delayed for two hours due to maintenance on No.1 engine.
The publication cited a retired Boeing employee, whose duties during his career included safety, who suggested that a catastrophic uncontained engine failure could have taken out the hydraulics and ignited fuel.
This flight, UPS2976, was headed from UPS’s worldwide hub in Louisville to Honolulu in Hawaii. It plunged into warehouses belonging to two businesses – a petroleum recycling facility and an auto parts yard – contributing to the massive blaze.
About 200 firefighters and emergency personnel and 50 trucks were called on Tuesday to battle the fire, which filled the evening sky with thick, black smoke.
Kentucky Governor Andy Beshear said the number of confirmed fatalities would likely grow by at least one, to 10. “We hope it doesn’t grow by too many more,” he said.
